trip lock

English translation: a lock requiring two actions to open it

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:trip lock
Selected answer:a lock requiring two actions to open it
Entered by: B D Finch

00:47 Jan 6, 2016
English language (monolingual) [PRO]
Tech/Engineering - Safety
English term or phrase: trip lock
The rooms can be upgraded to include an electronic access keypad that takes a number code, or left "raw" with a trip lock on the inside — the same that's used for bank safes.

http://www.courierpostonline.com/story/life/home-garden/2015...
Alexandre Reis
Brazil
Local time: 23:18
a lock requiring two actions to open it
Explanation:
This is a type of lock that has a safety mechanism to prevent it being accidentally opened. Two actions need to be performed in order to open it, the first action trips (releases) the device blocking the locking mechanism, so that it can be unlocked.

https://www.google.com.ar/patents/US3934282
"Safety trip lock for the drop side of a crib comprising a trip wire having an intermediate offset actuator portion, said wire extending to the ends of the crib and terminating in offset portions similar to cranks, together with a torsion spring maintaining said trip wire in a predetermined position, and latches at the end of the crib, i.e., on the corner posts, for receiving said offset ends in recesses therein, such that the trip cannot be operated unless the entire drop side is raised prior to moving the trip wire actuator."


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Note added at 8 hrs (2016-01-06 09:36:22 GMT)
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https://www.google.com.au/patents/US6209770The safety trip assembly is biased toward the extended position and is moved toward ... Safety trip assembly and trip lock mechanism for a fastener driving tool

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Note added at 13 hrs (2016-01-06 14:00:32 GMT)
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It occurred to me that fitting a trip lock to open a safe door from the inside would allow it to be opened by a member of staff who knew how to use it, while trapping any careless bank robbers.
Selected response from:

B D Finch
France
Local time: 03:18
Grading comment
4 KudoZ points were awarded for this answer



SUMMARY OF ALL EXPLANATIONS PROVIDED
4 +1a lock requiring two actions to open it
B D Finch
3 +1lock that's easy to open
philgoddard
4left without an external lock and with an internal latch
airmailrpl


  

Answers


4 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +1
lock that's easy to open


Explanation:
I think this is bad writing, as its meaning is not clear. "Raw" presumably means "on its own" or "without any additions". "Trip lock" gets very few hits, but I'm guessing it means one that is easily opened, probably without a key. If you're locked inside a safe, you must be able to get out without difficulty.


    Reference: http://www.merriam-webster.com/dictionary/trip
philgoddard
United States
Native speaker of: English

Peer comments on this answer (and responses from the answerer)
agree  Laura van Staveren: To my knowledge, a trip lock is a mechanical lock that automatically reverts to locked position upon release of the unlocking pin/lever/etc. (i.e. the lock of a carabiner).
4 hrs
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8 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
left without an external lock and with an internal latch


Explanation:
left "raw" with a trip lock on the inside => left without an external lock and with an internal latch

airmailrpl
Brazil
Local time: 23:18
Specializes in field
Native speaker of: Native in EnglishEnglish, Native in PortuguesePortuguese
Login to enter a peer comment (or grade)

8 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
a lock requiring two actions to open it


Explanation:
This is a type of lock that has a safety mechanism to prevent it being accidentally opened. Two actions need to be performed in order to open it, the first action trips (releases) the device blocking the locking mechanism, so that it can be unlocked.

https://www.google.com.ar/patents/US3934282
"Safety trip lock for the drop side of a crib comprising a trip wire having an intermediate offset actuator portion, said wire extending to the ends of the crib and terminating in offset portions similar to cranks, together with a torsion spring maintaining said trip wire in a predetermined position, and latches at the end of the crib, i.e., on the corner posts, for receiving said offset ends in recesses therein, such that the trip cannot be operated unless the entire drop side is raised prior to moving the trip wire actuator."


--------------------------------------------------
Note added at 8 hrs (2016-01-06 09:36:22 GMT)
--------------------------------------------------

https://www.google.com.au/patents/US6209770The safety trip assembly is biased toward the extended position and is moved toward ... Safety trip assembly and trip lock mechanism for a fastener driving tool

--------------------------------------------------
Note added at 13 hrs (2016-01-06 14:00:32 GMT)
--------------------------------------------------

It occurred to me that fitting a trip lock to open a safe door from the inside would allow it to be opened by a member of staff who knew how to use it, while trapping any careless bank robbers.

B D Finch
France
Local time: 03:18
Works in field
Native speaker of: English
PRO pts in category: 4

Peer comments on this answer (and responses from the answerer)
agree  Yvonne Gallagher: yes, has to have some sort of "tripping" action or "release" mechanism I'd imagine
1 hr
  -> Thanks Gallagy
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